Difference between revisions of "MicroBCU"

Latest revision as of 07:56, 27 August 2019

MicroBCU


Developer	Eugen Burkowski
Status	released
Microcontroller/Board	universal

Description

A little Bus Coupler Unit with an UART interface

Hardware

IC: NCN5120
Size: 23 x 19 x 5.4 (10.3) mm
Voltage 1: 3.3V
Voltage 2 (optinal): 5V (default), can be changed: 3.3V - 21V
Max. current: up to 100mA
UART: 19200bps 8E1

User Documentation

the new version (R1.2) has to connectors:

7x pin 2.54mm THT
2x4 or 2x5 pin 1.27 SMD

Attention: MicroBCU has no dedicated pins for WAGO terminal (Red/Grey)!

Developer Documentation

Build It

If you solder the MicroBCU yourself, be carefull: On (some?) PCV Rev 1.2 the solder print on the top (NCN-) side is wrong. The two capacitors C5 and C6 in the top right corner are switched - here you can see the correct soldering:

https://github.com/KONNEKTING/KonnektingHardware/blob/master/MicroBCU/R1.2/Board_top.pdf

Also be carefull wenn soldering the big capacitor C2: The solder print marks the + side of the capacitor, because this is the standard for tantalum capacitors. If you use aluminium capacitors, the - side is marked.

Links

[1] [2]

@@ Line 1: / Line 1: @@
 {| class="wikitable" style="float:right;margin-left: 15px;margin-top: 15px; margin-bottom: 15px;"
-! colspan="2"|Foo Bar Device Kit
+! colspan="2"|MicroBCU
 |-
-! colspan="2"|[[File:foobar.jpg|300px|thumb|center]]
+! colspan="2"|[[File:MicroBCU_top.png|300px|thumb|center]]
+|-
+! colspan="2"|[[File:MicroBCU_bottom.png|300px|thumb|center]]
 |-
 ! Developer
-| foo bar
+| Eugen Burkowski
 |-
 ! Status
-| foo bar
+| released
 |-
 ! Microcontroller/Board
-| foo bar
+| universal
-|-
-! KNX connectivity
-| foo bar
-|-
-! Needed libraries
-| bar foo<br />foo bar
 |}
@@ Line 43: / Line 39: @@
 == Build It ==
+If you solder the MicroBCU yourself, be carefull:
+On (some?) PCV Rev 1.2 the solder print on the top (NCN-) side is wrong.
+The two capacitors C5 and C6 in the top right corner are switched - here you can see the correct soldering:
+https://github.com/KONNEKTING/KonnektingHardware/blob/master/MicroBCU/R1.2/Board_top.pdf
+Also be carefull wenn soldering the big capacitor C2:
+The solder print marks the + side of the capacitor, because this is the standard for tantalum capacitors. If you use aluminium capacitors, the - side is marked.
 == Links ==
 [https://github.com/KONNEKTING/KonnektingHardware/tree/master/MicroBCU]
+[https://knx-user-forum.de/forum/projektforen/konnekting/1045398-microbcu-sehr-kleiner-knx-transceiver]
 [[Category:Device/Kits]]